B-Spline Explicit Active Surfaces: An Efficient Framework for Real-Time 3-D Region-Based Segmentation
B-Spline Explicit Active Surfaces: An Efficient Framework for Real-Time 3-D Region-Based Segmentation
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DOI：
10.1109/tip.2011.2161484
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发表时间：
2012-01-01
影响因子：
10.6
通讯作者：
Bernard, Olivier
中科院分区：
文献类型：
--
作者：
Barbosa, Daniel;Dietenbeck, Thomas;Bernard, Olivier
最近提出了一种基于显式函数的活动轮廓的新公式。这种新颖的框架允许实时 3D 分割，因为它减少了分割问题的维度。在本文中，我们提出了该方法的B样条公式，进一步提高了算法的计算效率。我们还表明，该框架允许使用基于局部区域的术语演化活动轮廓，从而克服原始方法的局限性，同时保持计算速度。使用肝脏计算机断层扫描和心脏超声图像等模拟数据和医学数据证明了实时 3D 分割的可行性。
A new formulation of active contours based on explicit functions has been recently suggested. This novel framework allows real-time 3-D segmentation since it reduces the dimensionality of the segmentation problem. In this paper, we propose a B-spline formulation of this approach, which further improves the computational efficiency of the algorithm. We also show that this framework allows evolving the active contour using local region-based terms, thereby overcoming the limitations of the original method while preserving computational speed. The feasibility of real-time 3-D segmentation is demonstrated using simulated and medical data such as liver computer tomography and cardiac ultrasound images.